Water connection.



E. S. $TAGK.

WATER CONNECTION.

APPLICATION FILED JULY 31. 1913.

Patented Sept. 8, 1914.

QZQWN ELM ER S. STACK, 6 WEST SOMERVILLE, MASSACHUSETTS.

WATER CONNECTION.

Specification of Letters Patent.

filed September 26, 1912.

1,109,9d6. Continuation of application Serial No. 722,432,

I atentedSept. s, 1914. This application filed July 31,

1913. Serial No. 782,387.

To all whom. it may concern p Be it known that I, ELMER when, a citizen of the lfnited States, and res dent of West Somerville, in the county of Middlesex and State of Massachusetts, have invented certain new and useful improvements in Water Connections, of which the following is a specification.

The present invention relates to a con;

nection designed and adapted to be used with a water tank and awater'heatcr for making communication between the delivery pipe which runs from the tank and the delivery pipe from the heater.

. It is the object of the invention to enable hot water to be drawn from a hot Water faucat or tap iii-the plumbing system with which the tank is connected when the heater is active, and the water in the'tank is cold, without mingling the cold water in the tiink with the hot water coming from the heater;

to enable hot water to be furnished for immediate use and delivered directly through the heater and'piping without first entering the tank, and within a brief time after generating heat in the heater, when the bodyof water in the tank is cold; and to get hot water when there is any in the top of the tank and" the heater is inoperative, without permitting the colder water from the bottom of the tank to flow through the heater.

The present application is a continuation of my pending application for water connection filed September 26, 1912, Serial No.

The manner in which my obycct is carried into effect is explained In the following vspecification in connection with the drawings forming a part of this application.

In the drawings, Figure 1 represents an elevation of a water-"tank and of a heater communicating With-said tank and having its outlet joined to the outlet of the tank by my improved connection. Fig. 2 is an elevation of the upper part ofthe tank showing the coupling or connection .applied to a different arrangement of delivery pipe. Figs 3 and 4 are views similar to F l and 2 re spectively showing a modified form of coupling or connection adapted to serve the some or ose and a )lied in the sumo wa as that P l J shown in Figs. 1 and 2. Fig. 5 iso detailed longitudinal section of the form of coupling shown in Figs. 1 and Fig.1; is a detailed section of the coupling shown in Figs. 3 and 4:.

The same reference characters indicate the same parts in all the figures.

In the drawings a represents a tank for containing hot water, I) a pedestal or base on which the tank is'supported, the inlet pipe for admitting cold water to the tank and (I the delivery pipe for conducting hot water to hot water faucets of the plumbing system with which this apparatus is connected.

A heater 0 is shown in connection with the tank and is preferably although not necessarily a gas heater in which heat developed by a-gas flame. I prefer to use in this connection such a heater as that illustrated in my pending application No.

QYOOA- il, which is especially designed to heat water instantaneously. This heater is connected with the lower part of the tank by a pipe and has n outlet pipe leading outwardly from its upper end. which is con nected with the discharge pipe (Z from the tank by a couplingor connection 11. Said coupling h is in external form a T coupling having'threaded end connections h and k and a side connection 12.

In the embodiment of the coupling shown in Figs. 1, 2, and 5 there is an internal elbow or angular conduit 2' which communicates with the side opening [1,3 and'has its inner enddirected toward the opening it which is the end nearest the tank when the coupling is properly connected in place.

The sides or walls ofthe elbow 2' are sepaif'cre with the thermal circulation through the heater. v

A modified form of coupling shown in 3, d, and 6 has an outer shell substan-- tially'like that of the form already described with the end openings h and If and the side opening b In the interior of this form of coupling there is a straight k which is 'imtenci 5% upper end, of n1 such a m1 3: that Water cannot "i" "at fins w i 141s toward the tbs de opemng h.

fled on all 9160 Hm i and 1- 1e op nmg n o openings "'1 abs 1 space inalos in cnnmctin in i 4 sysm. Mr and. of the T 1s c0n- LL-I1], the uppm nect' filth. the hot water supply pipe d "110 lower P am is, the and h is 5 to tha $15.1; by a pipe (5, the couing bsing emu-451v outside 0f the tank.

"e pipe 7 from he has m is connected 11:) 3 m: 0;

Z Jenni 1;, of the "i". The

. 1m? in. a, rising sup- 1 1g. i, m.- in a horirl" sass 5h); 5211 in Fig. 2.

shown 1 3 and. i. in r: form 0:? 0911- 51 mm; tha in- 1 ikzljfidfi both the 19 mine, i: of Fig; tank, and has '3 by an annular um the oppssite m be U T tan and warm in Siam mater 1' said is then kindle: 6X fiurnad. Lu), Turning on the flame in the case of m may 13 2111002119 "10 1 wine: 1 by e mn'gi ln Gr such as (505cm patent,

0 the in mus 1@"er3.'ed;

1 a. naticm hot Wner imln adiately F 11% m and without efi'ori; 011 th gar-i; 0* As 8001) as the Enamel hem warm the (1011111111 oi Water therein mu m the gum g becomes less dense, and the; e vhas; heavy than. the paralie'i, column in the nix and the pipe (101mm. jam 4", and laws upwzu'dly, (Hack. from the efibow 2', and corresfimxding passing around the "1 of tube it, said Water flmviu of 11: mater thawing ah, a 5.10 mlm place of the w: whivh Elms eaves the heaim', soon as 1m m the tap may be open! and the 11 *2 21' 912% is delimm i. at the 122. 9 as soc-11 00H W51- tez: in the pipe (5 is dispL is long as the "remains i0 1; (tent 110% etmedn aha mm at 1 Lhermal circnln. Lion msies the \mter ugh the heater, nniy e, 110 wuier pns mg HUQL the hear-r will he deliwued at the tap and 110116 0f 1 1113 com 3i be rm (1& Hwred, 01'- mi ix-tanning. commn 1n Ink and pipe Ll, so lhtb a. circulation Jlitfil scalars Aid: upxmrl imv from the anal duwmvzud How F tank he, tank mm L M1 up flow from the tank. i; nmlgih the h Swami, becuf sc the aiisulmrge on: the ileum" 31150 Um demher of the 11g of the the I" lUJ 11 3 but L var twee-"5 ulimv 8 wnich cailacts at the of $31 its specific grmity, '0 La ap "ntimr $11 sasu an water the ta 127.10%. a and u :10 3391? f from water 311% 120?, water,

-after flowing toward the tank in order tank.

either to escape from the elbow 2" or to enter the inner tube it, and movement in this manner of water from the heate is resisted and prevented by the force of the current flowing from the tank through the T. The pressure acting upon the tank tends equally to force the water through the pipe connection d and through the heater, but the passage through the pipe (1 and T is more .direct than that from the heater through the elbow 2' or to the inner tube It, so that upon opening the tap the flow starts first through the connection cl and chokes any flow from the heater due to pressure. When -the heater is active and no water is withdrawn at any tap, a thermal gravity circulation takes place between the heater and tank in the well known manner until all the water in the tank is heated to the capacity of the heater.

The tank may be connected to any other heater than that shown, as for instance with a kitchen range or a furnace, and in such case the action would be the same as that described, the coupling causing thewater to pass through the heater when the same is active and causing the water to flow directly from the tank and not through the heater when the tap is opened and the heater is inactive.

It-will be understood from the foregoing description that my invention insures the delivery of hot water when any hot water is available, and that particularly it enables hot water, to be furnished with a minimum expenditure of heat when the entire apparatus is cold.

It may be considered that the elbow i and tube 73 are two forms of baflle, each of which interrupts the direct flow from the 11 ater to the tank delivery pipe (1 and away from the tank and deflects the water toward the tank before permitting it to pass from the heater away through the pipe (Z, but without compelling such water first to passinto the It may'also be considered that the passage through the elbow i and the annular space around such elboivtogether form, in one embodiment of my T, a. passage from the heater to the delivery pipe (l, which is offset toward the tank and communicates with the tank, and that the bore of tlic'inner tube It and the annular space around such tube, provide an'equivalent oil'set passage in the other illustrated embodiment of the invention, the passage in each instance being contained wholly within the coupling and therefore permitting the water to flow through it without entering the tank.

Other forms and arrangements of bafiies or partitions may be used, and all such forms are within the scope of my invention as provide a means for causing the How of water from the tank to obstruct the flow from the heater when the latter is inactive, without compelling the hot water flowing from the active heater to enter the tank before passing away from the tank through the delivery pipe. U

ll'hat I claim and desire to secure by Let ters Patent is:

1. The combination of a tank, a heater, means for conducting water to the tank, a connection between the lower part of the tank and ihe heater, a delivery pipe leading from the tank, and a coupling in said pipe having a lateral branch connected to the beater, said coupling having internal means so constructed and arranged as to obstruct direct passage of water from said branch to said delivery .pipe, and to permit the water issuing from said branch to enter said pipe without passing into the tank.

2. Tl'ie'combination of a tank, a heater, means for conducting water to the tank, a

connection between the lower part of the tank and the heater, a delivery pipe leading from the tank, and a coupling in said pipe having a lateral branch connected to the heater, said coupling having a passage from said lateral branch to said delivery pipe, having means for deflecting toward the tank the water issuing from the branch in its flow to the delivery pipe, and having a passage in its interior around the end of said deflecting means.

S. The combination of a tank, a heater having an inlet connected with the lower part of the tank, a delivery pipe leading from the tank, a pipe leading from theheater, and a coupling connecting said pipes, having a passage arranged to permit flow o f water from the heater to the delivery pipe and a way from the tank without first entering the tank, and having means for deflecting the flow from the heater toward the tank.

4. The combination of a tank, a heater having an inlet connected with the lower part of ihe tank, a delivery pipe leading from the tank, a pipe leading from the heater, and a coupling connecting said pipes, said coupling having an internal passage be-' tween the respective pipes oii'set toward the tank. but entirely outside ofthe tank, and

the delivery pipe having an intervening paS- n the the tmlk to oppose flow from till. heater, and at the same time to provide a passage Within the coupling from the heater to the out- Werdiy running delivery pipe,

6. The combination of a tank, a heater having an inlet connected. with the iower part of the tank, at delivery pipe, pipe leading from the heatei', and coupling connecting said. pipes, said coupling; having an end opening connnunieating with the tank, an opposite end opening connected With the deiivei-y pipe, and a side epening connected with the pipe fi'om the heater, and imving also an. internal baiiie located wholly tween the said end openings and ante-aged to deflect Water entering said side opening 'tmvzu'd the first end opening hefei'e passing to the second eiio opening-x 7. The combination of a, tank, a heater having an inlet connected with the lower part of the tank, a cieiivery pipe, a pipe leading fromhthe heaterend a coupling for said pipes, eeici coupling having an end opening C(HIHIUUniCEIiihg'W'ith the tank, a side openizig connected with the pipe "which ieads from the heater, an opposite end opening connected with i delivery pipe, and. a

a eohduit ie bathe ceiinprisi; 3f the side opening and toward opening, but terminating Within the con elbow or nozzle in its intei'i exteno. i9

moeeee piing, suit: conduit being open at both QDIiS, and the coupling having an iIIiLBL'D space surrounding the conduit and crossing; one end thereof arid. in communication with the end openings.

8. The combination of a tank, a heater, an inlet connection to the heater from the bottom of the tank, an outlet piece from the heater, an outiet pipe leading from the tank, and a T connection in said outlet pipe hav ing an. opening in its side coupled w h the pipe leading from the heater a1 ilfidiil afl "from side opening and directed toward the tank, I 9. The combination. with a, Water tani: i an outlet pipe, :3, '1' coupling in ait?! outlet pipe having an opening in one side and 1ming an internal elbow extending from eat-id opening ami directed toward the tank, and. a heater coi'mected, respectively, with the bottom of the tank and "with the side 0pening in said coupling.

In testimony whereof i. have aiiixed my signature, in presence of twe' witnesees. 

